Verify NGC Certification

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NGC Cert #
2790751-153
NGC Description
1987MW PROBA POLAND KAZIMIERZ III WIELKI P-489A S1000Z
NGC Grade
PF 66 ULTRA CAMEO

White Spots Notice: Many modern silver coins can develop white spots, or "milk spots" as they are often called in numismatic vernacular. The development of white spots after a coin is graded by NGC is not covered under the NGC Guarantee because these white spots occur unpredictably and through no fault of NGC’s. Learn more >

If the information displayed above is incorrect or does not match the coin you are verifying, or if you believe that you have a counterfeit or tampered NGC holder, please contact Service@NGCcoin.com. To learn more about counterfeit or tampered NGC holders, click here.

Total Graded by NGC: How is this calculated?

The population in a given grade reflects the number of coins graded by NGC with that exact grade, designation (e.g. + or Early Releases) and strike character (e.g. BN or Ultra Cameo). The population “in higher grades” reflects the number of coins graded by NGC with a higher grade and/or better designations and strike characters. If the coin’s label has a signature (e.g. Mercanti Signature), the population will be limited to coins with that exact signature.

For example, if the coin’s grade is NGC AU 58 BN, the population shown will reflect all coins graded NGC AU 58 BN. The population “in higher grades” will include coins graded NGC AU 58 RB, NGC AU 58 RD, NGC AU 60 BN, etc.

For information on the NGC Grading Scale, designations and strike characters, click here.

Security Center

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NGC Guarantee

Every NGC-certified coin is backed by the industry-leading NGC Guarantee, which provides greater protection for both buyers and sellers. Learn more

Coin Grading Scale

See the full list of grades, descriptions and modifiers used by NGC to consistently and accurately evaluate a coin’s condition. Learn more

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